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MSPM0G3507: 请教一下,串口dma传输+接收超时中断,接收不定长的串口数据有没有demo

Part Number: MSPM0G3507

请教一下,串口dma传输+接收超时中断,接收不定长的串口数据有没有demo

官方文档有这个说明,但是没有demo,自己配置syscfg怎么配置都不对,要不就没超时中断,要不就发几次数据才中断一次